Fuel-regulator for gasolene-motors.



PATENTED DEC. 15, 1903.

H. H. HENNEGIN. FUEL REGULATOR FOR GASOLBNE MOTORS.

APPLIUATION rum) 21:13.21, 190s.

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NO MODEL.

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PATENTED DEG. I5, 1903.

' H. H. HENNEGIN.

FUEL REGULATOR FOR GASOLENE MOTORS.

APPLICATION FILED FEB. 21, 1903.

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K0 MODEL.

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No. 746,833. PATENTED DEG. 15,1903.

j REQEENNEGIN. FUEL REGULATORFOR GASOLENE "MOTORS.

' APPLIOATION FILED FEB. 21, 1903.

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. Ill/, AAIIIIIIIIUM? Witnesses: Inventor UNITED STATES HERBERT H. HENNE GIN,

Patented December 15, 1903.

OF CHICAGO, ILLINOIS.

FUEL*REGULATOR FOR GASOLENE-MOTORS.

SPECIFICATION forming part of Letters Patent No. 746,833, dated December 15, 1903.

Application filed February 21, 1903. $erial No. 144,412. (No model.)

, To dZZ whom it may concern:

Be it known that I, HERBERT H. HENNE- GIN, a citizen of the United States of America, anda resident of Chicago, in the county ,of

Cook and State of Illinois, have invented certain new and useful Improvements in Fuel- Regulators for Gasolene-Mot-ors; and I do hereby declare that the following description of my said invention, taken in connection with the accompanying sheets of drawings, forms a full, clear, and exact specification, which will enable others skilled in the art to which it appertains to make and use the same.

This invention has general reference to im-v provements in fuel-regulators for gasolene motors; and it consists, essentially, in the novel and peculiar combination of parts and details of construction, as hereinafter first fully set forth and described,and then pointed out in the claims.

In the drawings already referredto, which form a part of this specification and illustrate the invention more fully, Figure 1 is an elevation of this improved fuel-supply regulator. Fig. 2 is a longitudinal sectional elevation in line y y of Fig. 1.

2. Fig; 4 is a plan. of parts of the device. Fig. 6 a transverse section, of the elastic washer or valve-cushion. Fig. 8. is a longitudinal sectional elevation, on an enlarged scale, of the device illustrated in Fig. 3.

Like parts are designated by correspond ing symbols of reference in all the figures.

The object of this invention is the produc-[ Y tion of a very eflicient and sensitive, yet simher and the latter the mixing-chamber proper. I

The upper end of this case A is closed by a head 2, preferably formed integral with said case. From this head depends or projects Fig. 3 isa trans-. verse sectional elevation in line a; a; of Fig. Fig. 5 is a-diagram plan Fig. 7 is a plan, and.

downwardly a boss 5, which is internally bored and screwthreaded to receive a valvestem 6, having its seat 7 in the lower interior of said boss 5, the lower face of which is flush with the lower face 8 of the flange 1. From near the upper end of the boss 5 radiates a further boss 9, Fig. 3, connecting said boss 5 with and passing through the wall of the case A. It is bored centrally and internallyscrew-threaded at 10 to form a passage for the hydrocarbon fuel from its reservoir '(not shown) to the mixing and carbnreting chamber 4. I

L vThe lower end of the case A is open and internally screw-threaded at 11 to receive a cap 13, having acentral bore for the passage of the valvestem 14 of a cut-0E valve 15, consisting of a circular plate 16, formed integral with the valve-stem 14, and an elastic (preferably leather or rubber) disk 17, hearing with its upper face against the lower face of the ledge 1, as well as against the lower face of the central boss 5, thereby closing communication'between the chambers 3 and 4, as Well as the gasolene-passage 10 and said inking-chamber 4.

Beneath the plate 16 there is placed a cushion 18, consisting of an elastic ringsuch as leather, rubber, &c.so as to check the said ,valve whenever it is opened and to prevent its striking the upper face of the hub 19, formed on the cap 13, with a heavy blow. This valve 15 is normally held in its closed position by a spiral spring 20, surrounding the hub 19, as shown in the drawings.

On the lower portion of the case A there is formed a log 21, to which is pivoted a link 22, connectinga lever 23 with said lug. This lever 23 is pivoted to the lower end of the valve-stem 14 by a pin or bolt 24:. Its object will be hereinafter fully referred to.

' From the upper and lower ends of the case A project horizontal bars 25 and 26, terminating in a cylindrical shell 27 and supporting the same. Within the bore of this shell 2'7 is located a cylindrical bar 28,0f L shape, the upper end of which is' screw-threaded and provided with lock-nuts 29, while theopposite end (on the horizontal portion of this L- shaped bar) carries an antifriction-roller 30, the periphery of which bears against the lower edge of the lever 23, as shown in Figs. 2 and 3, and assists in keeping the valve 15 upon its seat and in its closed normal position. This L-shaped bar28 is oscillated in the shell 27 by means of a bell-crank lever 31, (clearly illustrated in Fig. 4,) fastened to the upper end of the bar 28 by a set-screw 32. The arm 33 of this bell-crank connects with a treadle or any other governing mechanism (not shown) from which this fuel'regulator is to be operated-such as the box of an automobile, &c. -by any suitable means. The arm 34 of this bell-crank has a toothed periphery 35 engaging a similarly-shaped disk 41, located upon a plate 42, secured to the upper end of the valve-stem 6. This toothed'disk 41 is provided with a curved slot 43, through which a screw 44, engaging with the plate 42, is passed to adjustably connect the disk and plate.

In the bell-crank 31 there is an oblong opening 45, and it is provided with an adjustingscrew 46 to limit the movement of the bellcrank 31 by engaging or coming in contact with an abutment 47, projecting from the upper horizontal bar 25 into the opening 45 of said bell-crank.

The upper face of the case A is graduated (arbitrarily) from O to 9 into ten divisions, and from the lower face of the plate 42 projects an index finger or pointer 48, the purpose of which will hereinafter appear.

In the case A and leading to the upper chamber 3 there is a,v passage 49, forming an air-inlet, which may be provided with an in let-tube 50, properly screened to prevent in gress of dust and grit, while from the lower chamber 4 leads the gas and air passage 51, by which this regulator is connected with any suitable gasolene-motor (not shown) by flanges 52 and tubing 51.

Having thus fully ascertained the details of construction of this device, I shall now proceed to describe its operation. Assuming the regulator to be properly located near and suitably connected with a gasolene-motor and a gasolene tank and the valve 15 to be in its normally closed position, the motor is started by operating the bell-crank 31 in the direction of the arrow, Fig. 4, which will cause the valve-stem 6 to be rotated by the gearing 34 35, shown and described, and thus to withdraw the valve-stem 6 from its seat. This, however, will not allow the hydrocarbon liquid to escape from its passage into the mixing-chamber, for the reason that the lower end of the gasolene-passage is still closed by the valve-disk 17. Now the motor is started in the usual manner by revolving it, when the Vacuum produced in the motor-cylinder, and consequently in the mixing-chamber 4, will pull the valve 15 off from its seat and allow air and gasolene to enter the mixingchamber 4, where said gasolene in evaporating will carbnret the air, which passes to the motor and is otherwise governed in the usual manner of a gasolene-engine. Now in order to vary the supply of gasolene, and thereby to vary the proportions of hydrocarbon and air, and consequently the power of the motor, the disk 41 and plate 42 are adjustably connected one with the other by the screw 44, so that the gasolene-valve 6 may remain more or less open when the device is in its normal position, the variations being clearly ascertainable and fixable by observing the indexpointer 48 and the graduations upon the upper face of case A.

For the purpose of governing the movement of the main valve 15-that is to say, to offer variable resistance to its opening when the motor is in action-the roller 30 on the L- shaped arm 28 moves simultaneously with the gasolene-valve 6 from its normal position under the link 22 gradually over the lower edge of the lever 23 until its maximum limit of movement directly under or beyond'the valve-stem 14 is reached, thereby changing the point of contact with said lever 23 from its pivotal point, or point of least resistance, to or beyond the point of connection with the valve-stem 14. This L-shaped lever 23 is resilient and vertically adjustable by operating the lock-nuts 29, whereby the force exerted upon the lower edge of the lever 23 may be varied, it being borne in mind that the elasticity or resiliency of the metal of which the L shaped lever is constructed is the means of offering resistance to the downward movement of the lever 23 at its point of contact with the roller 30 of the long arm 34. In this manner as the proportions of gasolene and air are increased so the resistance to the opening of the admission-valve is also increased, thereby and by the auxiliary means of adjustment at the upper end of the member 28 providing means for a very perfect and sensitive governing of the fuel-supply of a gasolene-motor.

There are in the plate 42 a series of screwthreaded (tapped) holes, (shown in dotted lines in Fig. 4,) with any one of which the screw 44 may be engaged, and thereby the position of the gasolene valve stem 6 with reference to that of the toothed disk 41 varied as necessity may require.

By reference to Figs. 2 and 8 of the drawings it will be seen that the lower end of the gasolene or hydrocarbon valve 6, which is usually called a needle-valve, is flush with the lower face of the boss 5. This is quite an essential feature of this present invention, which distinguishes it from other carbureters now in use, inasmuch as there is no space whatever below this valve-point and the top of the main-valve disk 17 after this valve has closed the passage between the ingress and mixing chambers wherein hydrocarbon cated therein and adapted to normally close the passage between the respective chambers, a lever below said body and engaging the main-valve stem, means substantially as described, acting upon the said lever to resist its movement and further, auxiliary means for varying this resistance, as stated.

2. A liquid-fuel regulator for gasolene-motors consisting essentially of a mainvalve case having air and mixing chambers, a liquid -fnelsupply-regulating valve, a main valve adapted to close both, the passage between the two chambers and the discharge of the liquid-tnel-snpply-regulating valve, a lever pivotally secured to the main valve case and the stem of the main valve, a resilient arm adapted to support said lever, and means for varying the supporting position of the said arm, as specified.

3. In a liquid-fuel regulator, 21. valve-case having mixing and air supply chambers 10- cated therein, a main valve adapted to normally close the passage between the two chambars, a pivoted lever below said case and engaging the stem of the main valve, an L- shaped resilient arm journaled within a tubular extension of said case, a bearing-roller on the end of said swinging arm and supporting the said pivoted valve lever and means for oscillating said L shaped arm whereby the position of contact of the said roller and said lever may be varied as described.

4. In a liquid-fuel regulator, a valve-case having mixing and air-supply chambers located therein, a main valve adapted to normally close the passage between the two chambers,a pivoted valve-lever below said case and engaging the stem of the main valve, an L- shaped resilient arm journaled within a tubular extension of said ca'se,a bearing-roller on I the end of said swinging arm and supporting the said pivoted valve-lever,means for oscillating said L- shaped arm, and further auxiliary means on the u pper end of the L- shaped arm for varying the force with which the said roller bears upon the'said valve-lever, as and for the purpose specified.

5. In a liquid-fuel regulator, a valve-case having interior air and mixing chambers, a main valve in said case adapted to normally close the passage between the said chambers, a liquid-supply-regulating valve the discharge-passage of which is also normallyclosed by said main valve,an L- shaped resilient arm journaled within an extension on said case, suitable means for connecting one portion of this arm with, and revolving the valve-stem of the liqnid-fnel-snpply valve, and meansat the other end of said arm for variably supporting the lever of the main valve.

6. In a liquid-fuel-supply regulator,having a valve to close the passage between the air and mixing chambers, an oscillating resilient arm havinga roller on its end, and a lever pivoted to the stem of said valve, said arm being journaled in a tube and adapted to move the roller over the edge of said lever, whereby the point of contact of the lever and roller may be varied, as stated.

7. In a liquid fuel-supply regulator, the combination with the valve-case having the air and mixing chambers, of the liquid-fuel- HERBERT H. HENNEGIN. V

Attest:

MICHAEL J. STARK, CHARLES MCNELLIS. 

